Having problems with your 1990 Ford Bronco ?
When i push on the brake hard it stays. but when i push on it to slow down the peddle goes all the way to the floor and does not stop. there is no air in the lines. but when i push on the brake there is bubbles coming up in the master cylinder where the brake fluid is stored. what is the problem and how do i fix it?
Do a brake booster test...pump the brakes 3 times then start the car does the pedal drop??? okay now running pump the pedal three times hold down.. now turn off engine does it drop within 30 sec??? check engine vacuum too booster is good
THE PROBLEM IS THE MASTER CYLINDER AND YOUR ONLY SOLUTION IS IS TO REPLACE IT, IT'S A COMMON TRAIT.
Repair Help & Product Troubleshooting for 1990 Ford Bronco
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.